Disk-harrow



(No Model.) H. M. ROSE.

Y DISK HABROW'. No. 261,875. Patentd Aug. 1, 1882.

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vNUNITED STATES PATENT OFFICE.

HENRY M. ROSE, OF WATERMAN STATION, ILLINOIS.

DISK-HARROW.

SPECIFICATION forming part of Letters Patent No. 261,875, dated August 1, 1882. Application mediteren 16, 1882. (No model.)

` To all 'whom it may concern: i

Be it known that I, HENRY MARTIN Rosa, of Waterman Station, DeKalb county, Illinois, have invented a new and useful Improvement iin Disk-Barrows; and I do hereby declare that the following is a full and exact description of the same.

The objects of myinvention are to lighten the draft, simplify the construction, and construct the disk-gan gs inindependent sections, so that they may be interchangeable and capable of removal and use in corn-cultivators, Snc.

`This machine is provided with two gangs of disks which are independently capable of motion in a horizontal plane, so as to assume various angular positions in respect to the line of advance, and also independent movements in vertical plane to conform to undulatious ofsurface overwhich it advances. The `former is subject to adjustment by the attendant. The latter movements are automatic, and the movement of each gang may or may not be independ- -ent of the movement of the other, according as they are coupled or uncoupled. The disks are connected together or mounted in sections, two or more of which' constitute the gang. Each section I prefer to construct with three disks, and it is a complete structure in itself, attachable and detachable as a whole, and constitu tes an independent member of the machine. The draft is applied to each gang'at or near its center oflength, and it is there balanced and ca- .pable of changing its angular position with small resistance.

My invention therefore relates, rst, to thc structure ofthe gang; and it consists in making the same in sub gangs or sections; and, second, it relates to the mounting or attachment of the same to the draft device; and it consists in a pivoted draft attachmentconnectedwith a nonrotating axle att or near the center ofthe gang between said sections.

That others may fully understand myinvention, I will particularly describe it, having reference to the accompanying drawings, wherein Figure lis a perspective view of my machine.

Fig. 2 is a bottom plan including a section of the gang in the plane of the gang-axle. Fig. 3 is a side elevation of the bracket. Fig. 4 is an elevation of the inner hanger. Fig. 5 is a central longitudinal section of a disk-section. Fig 6 is a longitudinal section of the bracketjoint.

Ais the draft-tongue, provided at its rearend with a cross-piece, B, and braces c cfior the same. This constitutes the mainframe ofthe machine, upon which the driveis seat I) is mounted.

i `At each extremity of the cross-piece B an arm or bracket, E, is attached with a connecting-joint, which will permit said arm to swing in a horizontal plane and also to partly rotate on a horizontal longitudinal axis This joint I tnd it economical aud convenient to make by inclosing said piece B between two plates, a a', which form parts of the arm E, anda bolt, b, which passes through said plates and the interposed piece B, the bolt-hole in said piece being enlarged from the center outward in both directions, so as to permit said bolt to rock back and forth in said hole as the arm is partly rotated, as set forth. The cross-piece may be re-ent'orced with metal at this joint, or thejoint may be wholly constructed of metallic parts attached to the cross-piece. The jointbolt also serves as a vertical axis whereon said arm may swing or vibratein a horizontal plane.

At the rear extremity of each arm'or bracket E there is a block, F, which is attached to said arm by a vertical pivot-bolt, and is therefore capable of a vibratory motion on said arm in a horizontal plane. The non-rotating axle-rod G is passed through said block F, and may be secured rigidly therein, though it is not generally necessary to provide set-screws or other special devices for that purpose, the tension of the nuts a being sufficient. At their inner ends the axle-rods G are attached by links H to a hand-lever, IV, whereby the driver may move said inner ends of the axle-rods G forward and backward to give them a greater or less augular Obliquity to line of progression. Each `bracket E is provided with a part orbranch, J, which extends backward and upward therefrom, and is supported at its extremity by the plank or string-piece K, which is also supported upon the rod G by hangers or brackets L, one of which is placed at the center, and thus forms asupporting-connection between said arm J and the rear end of the arm E. These string-pieces K are not essential to the Working of the machine, but are convenient IOO vstructing matter.

supports for weights when the nature or condition of the soil requires the machine to be loaded. They also serve to support the slides M, which hear the scrapers N, whereby the disks may be cleared of adhering soil or other ob- The slides M may be con nected to hand-levers suitably located, so that thel attendant may operate and control the Scrapers at will and bring them into or out of action as occasion may require. These scrapers are knifeed ged blades, curved sidewise to fit the curvature of the disk. The point of the blade extends to the edge of the disk, but need not extend beyond it, and when in action the scraping-edge of the blade is in position radial to the disk, or theieahout. The'scraper isattached to its supporting-shank ata distance from its point, so that matter dislodged from the disk may still be fi ee to pass up ovrr the edge of the scraper and fall in front of the disk.; lf the scraper descended from above or laterally toward the edge ofthe disk, the support- :ing part of the scraper would 'arrest and hold this detached matter, and the accumulation of it'would be so great sometimes as to cause aA stoppage of the machine. I therefore prefer to form the scraper from a rod which descends'. from the slide M at some distance from the disk to a point near the axle, and then bends laterally and upward again in aline correspending with the curvature of the disk. This portion ot' the rod which bends upward is dattened and sharpened along one edge, and constitutes the scraper, without presenting any point above the disk against which obstruct-I ing` matter can lodge. v

The disks O are circular plates of steel of suitable thickness, and are made concave, 0r` as is usual. I prefer to mount three disks tol gether on one shaft, and thus constitute a member of the machine, which I call a section, and compose the gang of two such sections, though these numbers are ofy course arbitrary. I think it preferable to employ7 a nonrotating axle-rod and hollow shafts for the section, rather than a rotating axle with short bearings at its ends, because in agriculturalv machines it is more difficult to maintain proper lubrication and exclusion of dirt when the bea-rin gs are short. Therefore in constructing the section I provide a piece ot' iron tube, P, of proper length for the section, and cuta screw-threadupon each end, and tit thereon nuts i'. For this purpose ordinary gas-,pipe one inch in internal diameter is both cheap and efficient. The orifice in the center of each disk O is of proper-size to admit the pipe P, which is passed through it. One ofsaid disks isplaced at the center of the pipe P, andat each side of it I place a thimble or sleeve, Q, made from a piece of pipe similar to pipe P, but of larger diameter, so that it will pass over said pipe. The length of the thimble Q is equal to the desired distance between the disks. When the center disk and the two sleeves Q are in place the remaining two disks are placed on the pipe P in contact with the outer ends of the sleeve Q, and the nuts 1" are screwed on, and these constitute what I call a section When placed in position in the machine the rod G is passed through the pipe P, and forms the axle whereon the section turns. Oil-holes are made through the pipes P Q, or otherwise provided near to the middle of the section, so that lubricant may be introduced at a distance from the end of the section. The action of the parts will cause a movement of said lubricant toward said ends, and thereby to a certain extent the entrance of 4dust and dirt is prevented. This method -of construction makes a section a unitary structure, and renders it so stiff in the line of its axis that there will not be in use any dex- -ure or bending of the shaft, whereby 'extra friction or cramping would ensue. The 'sectionsasI construct them are adaptedv to be readily removed from the barrow-frame, andas readily placed in a smaller frame-and adapted for use as a cultivator.

A sliding link, S, is placed" on the rodsH, so that the attendant may couple the ends lof the gangs and restrain them from independent movement, if that is desirable, by sliding said link-to the rear ends of said rods. lWhen it is moved to their front ends, however, the rods and the-gangs are left freefromeach other.

Having described my invention, whatI' 'claim as new is 1. In a disk-harrow,'a gang of disks' composed of two independent sections, substantially Vas described, a non-rotating axisirod whereonsaid sections revolve, and a draft-con nectionattached to said rod at its middleybei -pivotally attached to the rear ends ofsaid arms, and are thereby enabled to move Yina horizontal and vertical direction, as set fort-h.

3. In adisk-harrow, a draft-frame andgangs of revolving disks, combined with connecting arms or brackets E, each of `whichvis provided with an arm, J, string-piece K, and hangers L, whereby the ends and middle of theaxisrods G are supported, as set forth.

4. In a disk-barrow, a draftframe and two independent gangs of disks attached by their centers to` brackets extending backward from said draft-frame, combined with rods H,"ex tending from the inner ends of said gangs forward to the hand-lever and the slide S, whereby said gangs maybe coupled or'leftindependent in their movements, as set forth.

5. A section of harrow-disks constructed with a tubularaxis, as set forth, to wit: `said disks are placed upon a piece-of suitable pipe ICS IIO

Vof proper len gth, spaced by thimbles or sleeves of other pieces of pipe of proper size to slip over the first, and extending from one disk to another, and the whole rigidly fastened and held together by screw-nuts on the ends of the pipe rst mentioned.

6. In a disk-barrow, a disk-gang set up in sections upon hollow shafts, as set forth, combined with non -rotating rod, which extends through thegang and constitutes a continuous axis, as described. l

7. In a disk-barrow, disk-gangs set up upon tubular hubs, constituting complete and independent sections, substantially as described, combined with non-rotating axis-rods secured to the hangers at their ends,and draft-connections attached to the centers thereof.

8. In a disk-harrow, a set of disks comprising' three or other number less than the whole number ofthe gang, connected rigidly together of said disks, one of said vertical parts constituting the scraper contiguous tothe face of the blade and extending to the edge of the same, and the other vertical portion constituting the shank attached to that part of the frame whereby the scraper is supported, whereby matters detached from the blade may freely pass over the point of the scraper without arrest by the shank, substantially as set forth.

Y H. M. ROSE. Witnesses:

R. D. O. SMITH, M. V. SMITH. 

